Disk dispersal is a research area within astronomy that focuses on the process by which protoplanetary disks, or circumstellar disks, around young stars dissipate and ultimately lead to the formation of planetary systems. These disks are made up of gas and dust particles and play a crucial role in the formation of planets and other celestial bodies. The study of disk dispersal involves understanding the mechanisms that lead to the dissipation of these disks, such as photoevaporation by the central star, turbulence, or interactions with nearby stars or planets. Researchers also investigate how the timing and rate of disk dispersal impact the formation and evolution of planetary systems, including the types and sizes of planets that can be formed. Overall, disk dispersal research aims to deepen our understanding of the processes involved in the formation of planetary systems and the ways in which they are influenced by the dissipation of circumstellar disks.